var tag1 = "animal";
var tag2 = "car";
var tag3 = "guitar";
var tag4 = "video-game";

var img1 = "http://farm2.static.flickr.com/1362/592039901_ac9ea22575_m.jpg";
var img2 = "http://farm4.static.flickr.com/3530/3295294190_5efd9e1d8a_m.jpg";
var img3 = "http://farm2.static.flickr.com/1414/1385229338_b7a7aeb6f7_m.jpg";
var img4 = "http://farm4.static.flickr.com/3214/2837051558_5d3e648f26_m.jpg";

function init()
{
    var divTag1 = document.getElementById("cluster_1_label");
    var divTag2 = document.getElementById("cluster_2_label");
    var divTag3 = document.getElementById("cluster_3_label");
    var divTag4 = document.getElementById("cluster_4_label");
    divTag1.appendChild(document.createTextNode(tag1));
    divTag2.appendChild(document.createTextNode(tag2));
    divTag3.appendChild(document.createTextNode(tag3));
    divTag4.appendChild(document.createTextNode(tag4));

    var imgTag1 = document.getElementById("cluster_1_img");
    var imgTag2 = document.getElementById("cluster_2_img");
    var imgTag3 = document.getElementById("cluster_3_img");
    var imgTag4 = document.getElementById("cluster_4_img");
    imgTag1.src = img1;
    imgTag2.src = img2;
    imgTag3.src = img3;
    imgTag4.src = img4;
} 

function img1_mouseOver()
{
    
}
